English: When mounting traffic signals using span wires, a "suspended box span" or "modified box span" looks like a clasic box span but with signals suspended over the middle of the intersection, making the signal more visible and aligned.
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Captions
When mounting traffic signals using span wires, a "suspended box span" or "modified box span" looks like a clasic box span but with signals suspended over the middle of the intersection, making the signal more visible and aligned.